Sucker-rod, tubing, and casing elevator.



C. A. HIVELY.

SUCKER ROD, TUBING, AND CASING ELEVATOR.

APPLICATION FILED SEPT. 10, l9l8.

0G 1 9 1 4 04 G e D d e t H nu L a P INVENTOR. MMJQ v4 mu WITNESS:

A TTORNE YS.

e rare earner eerie.

CHARLES A. HIVELY, OF GOALING-A, CALIFORNIA, ASSIGNOR OF ONE-THIRD T0 J. H.

GREEK, AND. ONE IHIRD T0 C. A. HENDSGH, BOTH OF COALINGA, CALIFORNIA.

v SUCKEB-BOD, TUBING, AND CASING ELEVATOR.

Application filed September 1 I To all whom it may concern Be it known that I, CHARLES A. HIVELY, a citizen of the United States, residing at Ooalinga, in the county of Fresno and State vators, in that they lift and support the strings of rods, tubing or casing for dismemberment, and lift the various sections thereof and hold them in place for coupling or assembling them.

Though my invention is applicable to sucker-rods, well-tubing, well-casing, or to any pipes or rods which require to be handled in sections for dismemberment or assemblage, I shall for convenience, herein describe it in connection with sucker-rods.

In the operation of deep wells, and particularly oilwells, surface by means of a deep-well-type of pump, which is operated by sucker-rods.

It frequently becomes necessary to remove the sucker-rods from, and replace them in the well. This is done by hoisting the rods with a cable, the hoisting exposing convenient sections of the string, which sections are unscrewed or screwed together, by means of suitable couplings.

The rods are taken hold of by the elevator, this being its function.

The objects and advantages of my elevator will hereinafter fully appear, and to attain these, my invention consists in the novel elevator which I shall now describe by reference to the accompanying drawings, in which Figure 1 is an elevation of my elevator showing the sucker-rod in place.

Fig. 2 is a vertical section on the line 2-2 of Fig. 1, the sucker-rod being omitted. I

Fig. 3 is a horizontal section on the line 33 of Fig. 1, the sucker-rod being omitted.

Fig. 4 is an elevation with the latch member lifted.

The elevator comprises the body-member Specification of Letters-Patent.

the fluid is raised to the taken to show the part upon which It is obvious, however, as

said coupling not being Patented Dec. at, rare.

o, 1918. Serial no. 253,384.

- 1, the latch-member 2, and the link-member 3. y

The body-member is a single, relatively heavy and rigid block, provided with a radial groove 4, opening out at the side, and extending through the block from top to bottom. The side lips of the groove. are preferably beveled as at 5, in order to better guide the entering rod. The top of the body member is provided, at each side of the groove, with the guide lugs 6, from which spring the side ears 7 in which the link member 3 is articulated. The latchmember 2 is also a single. rigid block, pivotally connected with and playing upon one of the guide lugs 6, by a bolt, 8. Said latch-member has a radial groove 9 which extends from top to bottom and opens outat the side. The outer end of the groove plays upon the other guide lug 6 of the body member, so that when the latch-member is down on its seat on the top of the body-member it is locked against lateral movement. v

The grooves 4 and 9 of the body-member and of the latch member respectively, are in planes at right angles to their base portions are alined, when the latch-member is down on 1ts seat on top of the body member.

' The link-member 3 is a single U-shaped piece, the ends of which are provided with rings 10 freely engaging the ears 7 of the body-member.

11 inFig. 1 which for the purpose of illustration is the elevator is used. stated hereinbefore, that said part may be the tubing or the well casing or any other pipe or rod.

The sucker-rod 11 is shown as provided with the usual pin member 12 of the coupling, the complementing box member of here shown. It will be seen that when the elevator is lifting or supporting the sucker-rod, the shoulder 13 of the coupling 12 rests on top of the latch-member 2, which is then down to its seat and locked on the body member.

The operation of the elevator is as follows :-In order to engage and lift rod seethe elevator is slipped along the section,

each other, but

is a portion Of a sucker-rod e0 groove 4 following and partially embracing the rod. In this movement the friction of the rod section against the edge of the bottom of the latch-member which overlies the groove and is preferably beveled as shown at 14, is suflicient to automatically raise'the latch member about its pivotal bolt 8, and as soon'as it islifted far enough, the elevator body drops clear downupon the rod section, the latter then lying in thebas'e of the body groove '4.- Thereupon the latch member drops back by gravity over the rod,

to its locking position, and the rod section is then wholly'con-fined'in the alined bases of both grooves and can be lifted. When the rodis in a vertical posltion, and

i the elevator is sli ped along it with its body groove following the rod, the coupling oft-he rod catches on the under side of the latch member and lifts it, the latch thereupon falling back by gravity as the rod enters the base of the groove.

. The latching is, therefore, always auto matic and positive, and it isimpossible for the rod to become disengaged accidentally.-

15 indicates a finger roove, one on each I side of the vlatch mem er, to enable said member to be readily lifted by hand if required. It will be seen from Fig. 1 that the elevator is locked when under load. As all elevators are a sliding fit on the rod, pipe or casing, and carry the load by coming up against the coupling, it will readily be seen that with and thereby rendered useless.

my elevator, the load locks the same positively and without stress on. any hinge or pin joint. v

The elevator cannot be sprung'out of shape link type may be engaged with the hoisting hook with one hand, leaving the operator free to catch the hookwith his other hand and swing it into. position. Previous elevators which are of the latching type require two links, while those having one link are not provided with the latching feature.

Another great objection to the doubleil ink type is the danger of only one link becoming engaged with the hook. This springs the elevator and may cause the rods to be dropped. It also may spring the latch and make it inoperative. In my elevator, however, there is no hinge subjected to load.

From the foregoing it will be seen that the elevator herein described combines the single link with positive latching. The

The load is 1 latching is automatic, and the latch opens freely and practically automatically in the operation of engaging the rods. The elevator is positively ocked when under load.

The load is. carried by a single piece body the body-member, and adapted to close down upon and to swing away from said top, said latch-member having a radial groove extending from top to bottom and opening out at the side, said groove being in a plane at right angles to the groove of the body member, the bases of the two grooves being alined when the latch member is closed down. on the body-member; and suspending connections for the body-member.

2. An elevator for the described purposes, comprising a rigid block forming a bodymember, having a radial groove extending from'top to bottom, and opening out at the side; a latch-member hinged to the top of the body-member, and adapted to close down upon and to swing away from said top, said latch-member having a radial groove extending from top to bottom and opening out I at the side, said groove being in a plane at right angles to the groove of the body member, the bases of the two grooves being alined when the latch member is closed down on the body-member; and a single suspend- 3 ing link engaging the sides of the body-..

member.

j 3. An elevator for the described purposes comprising a rigid block forming'a bodymember, having a radial groove extending I from top to bottom and opening out at the side, the top of said member having guidelugs on each side of said groove; a latchmember hinged at one side to and playing over one of said guide lugs, and at the other 1 side fitting and playiiiga over the other of said guide lugs, whereby iti is adapted to swing away from the top of the body member and to seat and lock itself thereon against a radial groove extending from top to bottom and opening out at the side, said groove being in a plane at right angles to the groove of the body member, the bases of the two grooves being alined when the latch member is closed down on the body-member; and iuspending connections for the body-me'm- 4. An elevator for the described purposes, comprising a rigid block forming a bodylateral movement, said latch-member having I member, having a radial groove extending from top to bottom and opening out at the side, the top of said member having guidelugs on each side of said groove; a latchmember hinged at one side to and playing over one of said guide lugs, and at the other side fitting and playing over the other of said guide lugs whereby it is adapted to swing away from the top of the body memher and to seat and lock itself thereon against lateral movement, said latch-member having a radial groove extending from top to bottom and opening out at the side, said groove name to this specification in the presence of v two subscribing Witnesses.

CHARLES A. HIVELY.

Witnesses:

G.'W. SA'roHELL, M. TIPTON. 

